AD9248BST-65EB Analog Devices Inc, AD9248BST-65EB Datasheet - Page 45

• Manufacturer Part Number: AD9248BST-65EB
• Description: BOARD EVAL 14BIT 65MSPS 64LQFP
• Manufacturer: Analog Devices Inc

Specifications of AD9248BST-65EB

• Number Of Adc's: 2
• Number Of Bits: 14
• Sampling Rate (per Second): 20M
• Data Interface: Parallel
• Inputs Per Adc: 1 Differential
• Input Range: 2 Vpp
• Power (typ) @ Conditions: 640mW @ 65MSPS
• Voltage Supply Source: Single
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: AD9248BST-65
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

AD9248
Figure 58. PCB Bottom-Side Silkscreen
THERMAL CONSIDERATIONS
The AD9248 LFCSP has an integrated heat slug
that improves the thermal and electrical properties of the
package when locally attached to a ground plane at the PCB.
A thermal (filled) via array to a ground plane beneath the
part provides a path for heat to escape the package, lowering
junction temperature. Improved electrical performance
also results from the reduction in package parasitics due to
proximity of the ground plane. Recommended array is 0.3 mm
vias on 1.2 mm pitch. θ
= 26.4°C/W with this recommended
JA
configuration. Soldering the slug to the PCB is a requirement
for this package.
Figure 59. Thermal Via Array
Rev. B | Page 45 of 48